| 摘要 |
PURPOSE:To obtain an entitled resin having superior selective adsorptivity especially for boron, hydrophilic property, high adsorption speed, and superior mechianical strength and resistance to org. staining, by resinifying a compd. obtd. by introducing an aminopolyalcohol deriv. to a phenol ring. CONSTITUTION:One of phenols, such as phenol, one of aldehydes, such as formaldehyde, and one of aminopolyalcohols are reacted to obtain an early product of phenol-aminopolyalchol adduct. As this aminoalcohol, compds. represented by the formula in which n is an integer of 1-10, embodied as N-methyl-D-glucamine or n-ethyl-d-glucamine are used. Aldehydes, aliphatic polyamines, and phenols are added to said early stage product, and they are polycondensed in the presence of an alkaline catalyst to obtain an intended chelating ion exchange resin having a 3-dimensionally cross-linked structure. |
